* Patch from Paul Ishenin to fix several Delphi-incompatilibities:

- Make TField.SetDataset virtual
  - Pass SetVariant argument as const
  - Add TField.Lookup property
  - Add TDataset.SetDefaultsField protected method

git-svn-id: trunk@11129 -

packages/fcl-db/src/base/dataset.inc

@@ -1177,6 +1177,11 @@ begin
     end;
 end;
 
+procedure TDataSet.SetDefaultFields(const Value: Boolean);
+begin
+  FDefaultFields := Value;
+end;
+
 Procedure TDataset.SetField (Index : Longint;Value : TField);
 
 begin

packages/fcl-db/src/base/db.pas

@@ -257,8 +257,8 @@ type
   { TField }
 
   TField = class(TComponent)
-  Private
+  private
-    FAlignMent : TAlignment;
+    FAlignment : TAlignment;
     FAttributeSet : String;
     FCalculated : Boolean;
     FConstraintErrorMessage : String;
@@ -296,16 +296,17 @@ type
     FValidating : Boolean;
     FVisible : Boolean;
     FProviderFlags : TProviderFlags;
-    Function GetIndex : longint;
+    function GetIndex : longint;
+    function GetLookup: Boolean;
     procedure SetAlignment(const AValue: TAlignMent);
     procedure SetIndex(const AValue: Integer);
-    Procedure SetDataset(AValue : TDataset);
     function GetDisplayText: String;
     function GetEditText: String;
     procedure SetEditText(const AValue: string);
     procedure SetDisplayLabel(const AValue: string);
     procedure SetDisplayWidth(const AValue: Longint);
     function GetDisplayWidth: integer;
+    procedure SetLookup(const AValue: Boolean);
     procedure SetReadOnly(const AValue: Boolean);
     procedure SetVisible(const AValue: Boolean);
     function IsDisplayStored : Boolean;
@@ -350,9 +351,10 @@ type
     procedure SetAsLongint(AValue: Longint); virtual;
     procedure SetAsInteger(AValue: Integer); virtual;
     procedure SetAsLargeint(AValue: Largeint); virtual;
-    procedure SetAsVariant(AValue: variant); virtual;
+    procedure SetAsVariant(const AValue: variant); virtual;
     procedure SetAsString(const AValue: string); virtual;
     procedure SetAsWideString(const aValue: WideString); virtual;
+    procedure SetDataset(AValue : TDataset); virtual;
     procedure SetDataType(AValue: TFieldType);
     procedure SetNewValue(const AValue: Variant);
     procedure SetSize(AValue: Word); virtual;
@@ -406,7 +408,7 @@ type
     property OldValue: variant read GetOldValue;
     property LookupList: TLookupList read GetLookupList;
   published
-    property AlignMent : TAlignMent Read FAlignMent write SetAlignment default taLeftJustify;
+    property Alignment : TAlignment read FAlignment write SetAlignment default taLeftJustify;
     property CustomConstraint: string read FCustomConstraint write FCustomConstraint;
     property ConstraintErrorMessage: string read FConstraintErrorMessage write FConstraintErrorMessage;
     property DefaultExpression: string read FDefaultExpression write FDefaultExpression;
@@ -417,11 +419,12 @@ type
     property HasConstraints: Boolean read FHasConstraints;
     property Index: Longint read GetIndex write SetIndex;
     property ImportedConstraint: string read FImportedConstraint write FImportedConstraint;
+    property KeyFields: string read FKeyFields write FKeyFields;
+    property Lookup: Boolean read GetLookup write SetLookup;
+    property LookupCache: Boolean read FLookupCache write FLookupCache;
     property LookupDataSet: TDataSet read FLookupDataSet write FLookupDataSet;
     property LookupKeyFields: string read FLookupKeyFields write FLookupKeyFields;
     property LookupResultField: string read FLookupResultField write FLookupResultField;
-    property KeyFields: string read FKeyFields write FKeyFields;
-    property LookupCache: Boolean read FLookupCache write FLookupCache;
     property Origin: string read FOrigin write FOrigin;
     property ProviderFlags : TProviderFlags read FProviderFlags write FProviderFlags;
     property ReadOnly: Boolean read FReadOnly write SetReadOnly;
@@ -1203,6 +1206,7 @@ type
     procedure SetBufListSize(Value: Longint); virtual;
     procedure SetChildOrder(Component: TComponent; Order: Longint); override;
     procedure SetCurrentRecord(Index: Longint); virtual;
+    procedure SetDefaultFields(const Value: Boolean);
     procedure SetFiltered(Value: Boolean); virtual;
     procedure SetFilterOptions(Value: TFilterOptions); virtual;
     procedure SetFilterText(const Value: string); virtual;

packages/fcl-db/src/base/fields.inc

@@ -608,6 +608,11 @@ begin
     Result:=-1;
 end;
 
+function TField.GetLookup: Boolean;
+begin
+  Result := FieldKind = fkLookup;
+end;
+
 function TField.GetAsLargeInt: LargeInt;
 begin
   Raise AccessError(SLargeInt);
@@ -742,7 +747,7 @@ begin
   Raise AccessError(SFloat);
 end;
 
-procedure TField.SetAsVariant(AValue: Variant);
+procedure TField.SetAsVariant(const AValue: Variant);
 
 begin
   if VarIsNull(AValue) then
@@ -939,6 +944,13 @@ begin
     result:=FDisplayWidth;
 end;
 
+procedure TField.SetLookup(const AValue: Boolean);
+const
+  ValueToLookupMap: array[Boolean] of TFieldKind = (fkData, fkLookup);
+begin
+  FieldKind := ValueToLookupMap[AValue];
+end;
+
 procedure TField.SetReadOnly(const AValue: Boolean);
 begin
   if (FReadOnly<>Avalue) then